Principles of Communication Systems
Principles of Communication Systems
An FPGA receiver for CPSK spread spectrum signaling
IEEE Transactions on Consumer Electronics
Computers and Electrical Engineering
Joint design of frequency and power adaptation in FHSS systems based on cognitive radio
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Computers and Electrical Engineering
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In this paper we have proposed code M-ary frequency shift keying technique based frequency hopping (CMFSK/FH) spread spectrum signaling for multi channel. In this technique, taking one bit from each channel, we have constructed data word (called as symbol) for CMFSK system and corresponding to each state of data word, the transmitter generates a frequency, which is selected and amplified for transmission. The received signal in the receiver is tuned to each transmitted frequency and decoded for separation of channels. Here, we have developed simulation model for bit error rate (BER) performance analysis of CMFSK/FH system and compared the same with analytical results of BER. It is seen that simulation model is matched closely with analytical result. The BER performance for CMFSK/FH is better than that of existing FH system. It is also seen that the BER decreases with increase of frequency hop size.